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Finding the Fourth Proportional to 616,738.70, 924,416.85 and 261,692.30

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Solution

The fourth proportional to 616,738.70, 924,416.85 and 261,692.30 is: 392,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,738.70 : 924,416.85 = 261,692.30 : x
  2. Step 2: Convert to fraction form
    616,738.70/924,416.85 = 261,692.30/x
  3. Step 3: Cross multiply
    616,738.70x = 924,416.85 × 261,692.30
  4. Step 4: Simplify right side
    616,738.70x = 241,912,771,635.26
  5. Step 5: Solve for x
    x = 241,912,771,635.26/616,738.70
  6. Step 6: Final answer
    x = 392,245.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.